body{
    background-color: #F7F7F7;
}
a{
    text-decoration: none;
}

#centers{                /*div */
    height: 200px;
    width: 400px;
    padding: 50px;
}
input{                  /*两个输入框*/
    height: 32px;
    width: 300px;
}
#houTai{                /*后台登录系统*/
    font-size: 19px;
}
button{                 /*登录和重填按钮*/
    border: 1px solid #CDCDCD;
    position: relative;
    left: -10px;
    margin-left: 30px;
    height: 28px;
    width: 60px;
}
#submits{                   /*登录按钮*/
    border: 1px solid #26B99A;
    color: #F7F7F7;
    background-color: #26B99A;
}
.xian{
    position: relative;
    top: -30px;
    font-size: 11px;
}